EN ISO 14453:1998
(Main)Pulps - Determination of acetone-soluble matter (ISO 14453:1997)
Pulps - Determination of acetone-soluble matter (ISO 14453:1997)
Halbstoffe - Bestimmung azetonlöslicher Bestandteile (ISO 14453:1997)
Diese Internationale Norm legt ein Verfahren zur Bestimmung von azethonlöslchen Bestandteilen in Halbstoff fest. Sie ist auf alle Sorten von Halbstoffen anwendbar, mit Ausnahme von Halbstoffen, die vollständig oder teilweise aus Altpapier hergestellt wurden. Die untere Bestimmungsgrenze liegt bei etwa 0,05 %.
Pâtes - Détermination des matières solubles dans l'acétone (ISO 14453:1997)
Vlaknine - Določevanje v acetonu topne snovi (ISO 14453:1997)
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2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Halbstoffe - Bestimmung azetonlöslicher Bestandteile (ISO 14453:1997)Pâtes - Détermination des matieres solubles dans l'acétone (ISO 14453:1997)Pulps - Determination of acetone-soluble matter (ISO 14453:1997)85.040VlakninePulpsICS:Ta slovenski standard je istoveten z:EN ISO 14453:1998SIST EN ISO 14453:2000en01-julij-2000SIST EN ISO 14453:2000SLOVENSKI
STANDARD
SIST EN ISO 14453:2000
SIST EN ISO 14453:2000
SIST EN ISO 14453:2000
SIST EN ISO 14453:2000
INTERNATIONAL STANDARD IS0 14453 First edition 1997-08-I 5 Pulps - Determination of acetone-soluble matter Pites - Dktermina Con des ma C&es solubles dans /‘a& tone Reference number IS0 14453: 1997(E) SIST EN ISO 14453:2000
IS0 14453: 1997(E) Foreword IS0 (the International Organization for Standardization) is a worldwide federation of national standards bodies (IS0 member bodies). The work of preparing International Standards is normally carried out through IS0 technical committees. Each member body interested in a subject for which a technical committee has been established has the right to be represented on that committee. International organizations, governmental and non- governmental, in liaison with ISO, also take part in the work. IS0 collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. Draft International Standards adopted by the technical committees are circulated to the member bodies for voting. Publication as an International Standard requires approval by at least 75 % of the member bodies casting a vote. International Standard IS0 14453 was prepared by Technical Committee ISO/TC 6, Paper, board and pulps. It cancels and replaces IS0 624:1974 of which it constitutes a technical revision. 0 IS0 1997 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from the publisher. International Organization for Standardization Case postale 56 l CH-1211 Gen&e 20 l Switzerland Internet central @ iso.ch x.400 c=ch; a=400net; p=iso; o=isocs; s=central Printed in Switzerland II SIST EN ISO 14453:2000
@ IS0 IS0 14453: 1997(E) Introduction This International Standard has been developed as a replacement for IS0 624:1974, Pulps - Determination of dichloromethane soluble matter, the previous solvent extraction method for pulps. The reason for the replacement is the potential health hazard using dichloromethane, the use of which is restricted by law in some countries. For some pulps the results obtained according to this International Standard are on a higher level than those obtained with IS0 624. SIST EN ISO 14453:2000
This page intentionally left blank SIST EN ISO 14453:2000
INTERNATIONAL STANDARD o IS0 IS0 14453: 1997(E) Pulps - Determination of acetone-soluble matter 1 Scope This International Standard describes the determination of acetone-soluble matter in pulp. It is applicable to all types of pulp, except pulps made entirely or partly from waste paper. The lower limit of the determination is about 0,05 %. 2 Normative references The following standards contain provisions which, through reference in this text, constitute provisions of this International Standard. At the time of publication, the editions indicated were valid. All standards are subject to revision, and parties to agreements based on this International Standard are encouraged to investigate the possibility of applying the most recent editions of the standards indicated below. Members of IEC and IS0 maintain registers of currently valid International Standards. IS0 72 13: 1981, Pulps - Sampling for testing. IS0 638:1978, Pulps - Determination of dry matter content. 3 Definition For the purposes of this International Standard, the following definition applies. 3.1 acetone-soluble matter: The amount of material that can be extracted with acetone from a sample of pulp by the method specified in this International Standard. 4 Principle The sample is extracted with acetone in a Soxhlet apparatus After at least 16 extraction cycles the solvent is evaporated and the residue is dried at 105 “C for 2 h and weighed. 5 Reagent 5.1 Acetone (CH3COCH3), analytical reagent grade. WARNING - Acetone is inflammable. Keep away from open fire. Do not use gas heaters. Follow pertinent safety regulations. SIST EN ISO 14453:2000
IS0 14453:1997(E) 6 Apparatus Ordinary laboratory equipment and 6.1 Soxhlet extraction apparatus, with ground-glass joints, having a 300 ml to 500 ml flask, a Soxhlet extractor and a water-cooled condenser. 6.2 Cellulose extraction thimbles, cleaned by pre-extraction with acetone. 6.3 Glass fibre, cleaned by extraction with acetone. 6.4 Heater, for the extraction apparatus (hot-water bath or equivalent). 65 w’hen Wei
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